Years ago I was pulled over by police for driving a bit quick, wound my window down and the officer said "I can smell alcohol". I said "So can I but I just squirted the windscreen and it's the screenwash".. which was true. He didn't even breathalyse me or do me for speeding.
I don't do that kind of thing (and don't think you do) but if I did I don't think a similar excuse like "It'll be my air freshener officer" would have worked lol.
Many moons ago I was out and about with a couple of my friends and one of them decided as we pulled up at a set of lights alongside each other that he'd try to race me off the lights (bit silly as I was driving a 1.3 Nova SR and he was in a Merc 190E 3.2 AMG - the outcome was obvious). What my friend hadn't noticed at the time (and I had) was that he had a police car behind him.
Cue enthusiastic launch away from the lights on his part followed by blue lights... plod pulled him over whilst I pootled past having a chuckle.
Caught up with him later on, he'd got away with a warning, but probably not for the reason you might think...
After being pulled over, plod tapped on the window, and the conversation went something like this...
"Step out of the vehicle, please sir."
"OK"
"Is this your car, sir?"
"No"
"Do you have insurance for this vehicle?"
"No"
"Do you know what the speed limit is on this road?"
"No"
"Well it's a 30mph limit down here. What speed were you doing?"
"No idea, I wasn't driving"
"Are you trying to be clever, sir?"
"No, but this is a left-hand drive car and I'm the passenger. I think you should be having this conversation with the driver..."
Cue a red-faced policeman... Guess he didn't feel like he could lecture my mate about failing to observe the speed limit when he'd failed to observe who was actually driving the car or which side the steering wheel was on before launching into his questions...